Early Miocene Subglacial Basalts, the East Antarctic Ice Sheet, and Uplift of the Transantarctic Mountains

Subglacially erupted volcanic rocks from Mount Early and Sheridan Bluff, Antarctica, yield whole-rock potassium-argon dates and argon-40/argon-39 release spectra of Early Miocene age. Field associations suggest the existence of the East Antarctic ice sheet and significant uplift of the Transantarcti...

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Bibliographic Details
Published in:Science
Main Authors: Stump, Edmund, Sheridan, Michael F., Borg, Scott G., Sutter, John F.
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1980
Subjects:
Antarctic
East Antarctic Ice Sheet
Mount Early
Sheridan Bluff
Transantarctic Mountains
Antarc*
Antarctica
Ice Sheet
Online Access:https://doi.org/10.1126/science.207.4432.757
https://www.science.org/doi/pdf/10.1126/science.207.4432.757
Description
Summary:Subglacially erupted volcanic rocks from Mount Early and Sheridan Bluff, Antarctica, yield whole-rock potassium-argon dates and argon-40/argon-39 release spectra of Early Miocene age. Field associations suggest the existence of the East Antarctic ice sheet and significant uplift of the Transantarctic Mountains by that time.

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